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R3130NxxB/D/H (SOT23-3) are the limited products and R3131N (SOT-23-3) is the discontinued product as of March, 2016.
R3130N/R3131N SERIES
Low Voltage Detector with Built-in Delay Circuit
NO.EA-073-160315
OUTLINE
R3130N/R3131N Series are CMOS-based low voltage detector ICs with built-in delay circuit, high Detector Threshold accuracy and ultra low supply current which can be operated at low voltage.
These ICs can be used as system reset generator, and each of these ICs consists of a voltage reference, a comparator, resistors for setting voltage detector threshold, an output driver transistor, and an output delay generator.
Detector threshold is fixed internally with high accuracy and requires no adjustment.
R3131N20EA Datasheet
